Rubber tire for vehicles.



Patant ed Jan. l5, 190i.

newton l UNTTED STATES PATENT OFFICE.

WILLIAM REESE GIDDEON, OF KNOXVILLE, TENNESSEE.

RUBBER TIRE FOR VEHICLES.

SPQEUIFIGATION forming part of Letters Patent No. 665,898. dated January'15, 1901.

Application filed September 8, 1900. Serial No. 29,442. (No model.) h

To all whom it may concern:

Be it known that I, WILLIAM Rnnsn G11)- DEON, a resident of Knoxville,Tennessee, have invented a new and useful Improvement in Rubber Tiresfor Vehicles, which invention is fully set forth in the followingspecification.

My invention relates to vehicle-tires, and more especially to solidrubber tires and the manner of securing the same to the tire-rims.

In most all the solid-rubber-tired vehicles now in use it has been foundnecessary to make some effectual provision against the side chafing andwear of the rubber tire. This has been heretofore secured by setting therubber tire in a deeply-channeled metal rim, which protects the sides ofthe tire by its upwardly-projecting metal walls. While this side chafinghas been practically neutralized by such means, the undue or tearingstrain upon the tire-retaining holes or grooves has always remained.This tearing strain upon the tire-retaining openings, or wire-holes, asthey are commonly called, (Wire being generally used for fastening solidrubber tires,) is due in most instances to the use of the deeplychanneled rim. In such constructions the tire is jammed into thechannel-rim to such a degree that when the load of the vehicle isbrought to bear upon the tire there is a constant wearing and tearingstrain upon the wire-holes, for the reason that the pressure crowds therubber next to the wire-holes against the flanges of the channeled rimon both sides. In my invention I provide for these transverse strainsupon the wire-holes by allowing a limited expansion of the rubber from acentral longitudinal portion of the tire outwardly in both directions,and yet within certain defined limits, which results in neutralizing thewear and tear upon the wire-holesthe weakest portions of the tire. Thisresult is produced by providing the rim with a central longitudinalprojection or depression, and from this central portion the rim isdished at each side to the outer edge. This dished shape is preferablyformed by oppositely upwardly projecting curved or concaved surfacesterminating in projecting edges extending beyond the sides of the tire.On the base of the rubber tire is a central longitudinal depression orprojection engaging the corresponding projection or depression in therim, while the balance of the base of the tire is formed in such mannerthat in assembling the parts the sides of the base are brought intocontact with the outer edges of the rim and also generally atintermediate points in the rim in advance of the contact with thecorresponding depression and projection of the rim and tire. When theretaining-wires are thereafter brought under tension, the outer sides ofthe tire are brought under greater tension than the more centralportions, thereby effectually sealing the exposed sides of the tireagainst the introduction of dirt and other extraneous matter tending todisrupt or distort the tire.

With these objects in view my invention consists in the followingconstruction and combination of parts, the features of novelty of whichare set forth in the appended claims.

Figure 1 is a transverse section of a tire and rim to which myimprovements have been applied, and Fig. 2 is a similar view showing thetire and rim detached. Fig. 3 is a transverse section of a modified formof tire. Fig. 4 is a cross-section of another modification of tire andrim, and Fig. 5 the same parts detached. Fig. 6 is a sectional view ofanother modified form of tire. Figs. 7, 8, 9, and 10 illustrate incross-sectional views still other modifications.

In the drawings, 1 represents the solid rubber tire throughout thefigures, and 2 the rim. The rim 2 is attached to the felly or spokes ofa wheel in any approved way.

The rim 2 is either provided with a central longitudinal projection ordepression in all the modifications. In Figs. 1 and 2 an angularprojection 3 is shown, in Figs. 4 and 5 an angular depression 4, inFigs. 7 and 8 a curved depression 5, and in Fig. 10 a curved projection6.

The tire l is correspondingly provided with a central angular or curveddepression or projection adapted to fit the rim. On Figs. 1, 2, and 3this conformation is shown at 7, in Figs. 4:, 5, and 6 it is shown at 8,in Figs. 7,

.8, and 9 at 9, and in Fig. 10 at 10.

11 is the curved or concaved dish of the rim at either side of thedepression or projection. The shape of the base 12 of the tire is suchwith relation to the dished rim that the outer edges or sides 13 of thebase of the tire first come in contact with rim 2 and are brought undergreater tension than the other portions of the base, thereby sealing thesides of the tire and rim against dismemberment or the entrance of dirtor moisture.

In Figs. 3, 6, and 9 the base edges of-the tire are provided with lipsor beads in order to give a still greater quantity of rubber in formingthe hermetic seal between the rim and the base edges of the tire.

The various figures in the drawings merely illustrate some of the shapesin which the irregular-formed central longitudinal depressions orprojections in the tire and rim may be fashioned. In like manner thebase-lines of the tire have been given some exemplifications in theirrelation to the dish-shaped rim. So, also, the two-Wire, one-wire, andband or tape retaining means for securing the tire to the rim have beenillustrated.

What I claim is p 1. The combination of a rim and a tire havingcorresponding central longitudinal interlocking means, said rim beingprovided with a dished face gradually flaring from the base to a pointbeyond the opposite sides of the tire, and said tire having fasteningmeans for securing it to the rim.

2. The combination of a rim and a tire having corresponding depressionsand projections, said rim having a dished face gradually flaring fromthe base to a point beyond the opposite sides of the tire and said tirebeing provided with fastening means.

3. The combination of a metal rim having a dished or concave outersurface in transverse section gradually flaring from the base to a pointbeyond the opposite sides of the I tire, with a solid rubber tire sosecured to said rim as to leave the side walls of the tire free fromcontact with the rim.

4. The combination of a metal rim with a dished or concave outer surfacein transverse section gradually flaring from the base to a point beyondthe opposite sides ofthe tire with a solid rubber tire so secured to therim as to leave the side walls of the tire free from contact with therim and place the greatest compression of the rubber along its outerbottom edges.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

, WILLIAM REESE GIDDEON.

Witnesses:

R. W. WILLIAMS, 0. T. WILLIAMS.

